Doffee cleanee foe caeding machines



(No Model.) 2 Sheets-Sheet, 1. G. BEBE.

DOFFER GLBANER FOR OARDING MACHINES. No. 401,811. Patented Apr. 23,1889.

ATTORNEYS.

N. PETERS. Fhnla-Lnhognphor. Washingmn, 0.0.

(No Model.) 2 Sheets-Sheet 2'.

G. BEBB.

DOPFER CLEANER FOR GARDING MAGHINES. No. 401,8l1. Patented Apr. 23,1889.

Q/flE/VTOR. BY M A TTOR/VEYS,

N. PETERS, Fhutwl ihogmpher, Washinglan. I10,

UNITED STATES EEicE.

PATENT GEORGE BEBE, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO GEORGEMERRIT'I AND WVORTH MERRITT, OF SAME PLACE.

DOFFER-CLEANER FOR CARDlNG-MACHINES.

SPECIFICATION forming part Of Letters Patent NO. 401,811, dated April23, 1889.

Application filed March 16, 1888. Serial No. 267,422. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE BEBB, of Indianapolis, in the county ofMarion and State of Indiana, have invented a new and useful Improvementin Doffer-Oleaners for Oarding- Machines, of which the following is aspecifh cation.

My invention is an improvement in doffercleaners for machines forcarding woolen and cotton fibers, and relates particularly to that classof such cleaners in which a cleaner-bar having card-clothing issupported so that it may be swung alternately in contact with the dofferand with a stripping-bar. In such der5 vices as heretofore constructedthe swinging cleaner has been continuously operated, and has been movedor swungabout an unchanging or unvarying center of motion. Thecontinuous operation of such cleaner has been found objectionable, forthe reason that it resulted in too much wear on the card-clothing of thedoffer, and also effected. a combing out of too much clean fiber. Themovingof the cleaner bar about a fixed or unchanging center has 2 5 alsobeen found. objectionable, in that in passing in its upward forwardmovement through the card-clothing of the doffer the stock on suchdoffer is rucked up, and there is a tendency to injure the card-clothingof such dof- 0 fer, as well as that of the cleaner. The presentinvention seeks to avoid these objections by providing mechanism wherebythe cleaner will not be continuously operated, but will only be workedat intervals, and also by pro- 3 5 viding a movable or changing centerof motion for the cleaner, so that such cleaner as it moves forward andupward toward the doffer will be held clear thereof and will be adjustedafter it has been moved upward past the def- 0 fer, so that it will comein contact with such doffer as it (the said cleaner) is lowered.

The invention consists in certain features of construction and novelcombinations of parts, as will be hereinafter described and 4 5 claimed.

In the drawings, Figure 1 is a side elevation of my invention in.connection with a part of a carding-machine. Fig. 2 is a detail per- Lilspective view of a part of the improved device. 3 is a partial frontelevation of the device. Fig. 4 is a detail perspective Viewillustrating particularly the eccentric support for the shaft of thecleaner and the construction for effecting the adjustment of such shaft;and Fig. 5 is a detail view of the leftrhand side of the device,enlarged, illustrating the operation of the devices for moving thecircle-block which supports the shaft, all as will be hereinafterdescribed and claimed.

In connection with the several parts pres- 6o ently described, I providea suitable supporting-frame, A, which is shown as formed of standards A,having feet a, through which it may be bolted to the carding-machineframe. This frame also has lugs or brackets B, on which the stripper-barb is adj ustably supported, and lugs or brackets O for supporting thebrackets D, in which the boxes or straps E may be adjustably supportedby means of sct'screws d. The boxes or straps E have formed in themcircular bearings, in which I fit circle-blocks E, which circle-blocksare provided off the center with bearings f for the shaft G, whichcarries the cleaner.

The circle-blocks may be formed to fit so tightly in the straps as toretain any suitable position to which they may be adjusted therein; butby preference I provide a brake, F, for such block, which brake is shownas consisting of a set-screw turned through the strap and bearingagainst the circle-block. The position of the cleaner and its shaft withreference to the doifer cylinder is clearly shown, particularlyinFig. 5."When the shaft and circle-block are in the position shown in 8 5 fulllines in said figure, the cleaner-bar, when moved forward and upwardtoward the doffer, will swing clear of such doffer. If when the cleanerhas reached its highest point the circle-block be turned slightly tolower the shaftbearings in such block, the cleaner will be moved towardthe doffer, and as it moves downward will clean the short stock (ice,from the cards of the doffer, the brake serving to keep the circle-blockin the position to which it may be turned in the strap. It is preferredto provide means for automatically effecting this adjustment, or turningof the circle-block in its strap, to which end I provide thecircleblock. with an arm or bar, H, having projec- LOO tions it h,forming shoulder-like portions, between which operates an arm, I, fixedto the shaft, preferably by forming it with a collar, 1', encirclingsuch shaft, and providing a setscrew, i, turned through the collar andbinding against the shaft, so the arm may be adj usted on the shaft asmaybe desired. It is also preferred to connect the projections h h adjustably to the arm H, by forming the latter with a slotted segment, H,and securing the project-ions in the slot thereof by means of threadedends and nuts, as shown. By these several adjustments the movement ofthe circle-block by the contact of the arm I with the projections h hcan be regulated as may be desired.

In the operation of this construction as the shaft is turned to throwthe cleaner forward and upward the arm I will, just as the cleanerreaches its uppermost position, strike the projection h and turn thecircle-block so as to lower the shaft and throw the several parts intothe position indicated in dotted lines in Fig. 5, so the cleaner on itsreturn movement will pass through the cards of the doffer as desired."As the cleaner approaches its rearward position, the arm I will strikethe projection h and readjust the circle-block to the position shown infull lines, Fig. 5. Thus it will be seenth'at the cleaner in its upwardforward movement does not pass through the cards of the doffer, but isproperly adjusted to pass through such cards on its return move= ment,as will be understood from the foregoing.

To the shaft G is secured a clutch-section, J, and a clutch-section, J,is fitted loosely on the shaft .and is movable into engagement with thefixed clutch-section, a spring, j, being usually interposed betweensuchsections to give them a tendency to move apart. The loose clutch-sectionhas an arm, K, extended from it and slotted at kto receive the bolt Z,which secures to said arm one end of the pitman L the oppositeend ofwhich pitman is suitably connected with a moving part of themachine',being usually connected to a crank, L, on a shaft of themachine, as shown in Fig. 1. The arm K also supports a pawl, K, whichengages a tripper, which in turn operates a shifter-bar, by which theloose clutch-section is moved into contactwith the fixed clutchsection.

In the framing l j ournal a wheel, M, having teeth, an, arranged to beengaged by the pawl K, so that the oscillation of arm K will effect anintermittent or step-by-step turning of the wheel M, which constitutesthe trippe'r, and

this wheel is held from turning too freely on they can be turned inward,as indicated at n, Fig. 2. These projections engage one arm, 0, of ashifter-piece, O, which piece has also a fork, 0, arranged to engage theloose clutchsection and adjust the same into engagement with the fixedclutch-section when the shifterpiece is rocked on its pivotal support atO, as shown. In the construction shown the pivotal support is an armextended outward from the lower edge of a flange, 0 which flange is madefast to the box or strap E by casting it integral therewith, or bysuitably securing it thereto.

The operation of this construction is simple. As the arm K is rocked,the wheel M is intermittently moved on its axis, but the looseclutch-section will work free of the shaft until one of the projectionsN moves into loose clutch-section into engagementwith the fixed one, andso key the arm K to the shaft and cause its oscillations to rock theshaft and operate the cleaner.

When the apparatus is applied to a carding-machine in which the dofferhas become very dirty, and it is desired to speedily clean the same, theparts may be adjusted to operate thecl'eaner continuously until thedoffer has been cleaned, and then adjusted to operate the said cleanerat intervals to keep the doffer clean.

To accomplish the continuous operation of the cleaner, it is onlynecessary toadjust the wheel M to bring one of the projections N inengagement with the arm 0, when the arm 0 of shifter-piece Q will adjustthe loose clutchsection into engagement with the fixed section. Then byadjusting the pawl out of contact with wheel M the wheel M will remainin position to hold the shifter-piece and clutch-section in thedescribed position. To throw the pawl out of engagement with the wheelM, such pawl may be raisedclearof the wheel and then secured bytightening the nut 70, which. holds such pawl on its pivotbolt. Suchpivot-bolt and the bolt securing the pitman to such crank-arm bothoperate in the slot of the arm K, so that either the length of movementof the arm or the stroke of the pawl, or both, can be adjusted asdesired. v V 7 Having thus described myinvention, what I claim as newis 1. In a doffer-cleaner, the combination of.

the framing provided with a box or strap for the circle-block, thecircl'e-blocl'i having off its center a bearing for the cleaner-shaft,the cleaner-shaft provided with a cleaner and journaled in said bearing,and means for oscillating the cleaner shafa'the said shaft and thecircle-block being provided with projections or portions arranged tocontact as the shaft is oscillated, whereby the oscillation of the shaftwill effect the desired adjustment of the circle-block, substantially asset forth.

2. The combination of the framing, the box or strap supported by saidframing, the circle-block journaled in said box or strap and providedoff its center with a journal-bearing, an arm connected with saidcircle-block and supporting projections, the shaft journaled in thebearings of the circle-block, an arm connected with such shaft andarranged to operate between the projections of the arm of thecircle-block, and the cleaner, substantially as set forth.

3. The combination of the framing, a shaft having a cleaner, the arm foroscillating such shaft, a clutch-section whereby said arm may be keyedto such shaft, a shifter-piece whereby to communicate motion to saidclutch-section, a tripper whereby to engage and operate saidshifter-piece, and operating means for said tripper, substantially asset forth.

4. The combination of the shaft provided with a cleaner, bearings inwhich said shaft is journaled, a clutch-section fixed 011 such shaft, aclutch-section loose with reference to the shaft and movable into andout of engagement with the fixed clutch-section, a shifterpiece having afork engaging the movable clutch-section, and an arm by which the saidshifter-piece may be operated, a toothed wheel having a projectingportion or portions arranged to engage the said shifter-piece, a pawlengaging the toothed wheel, the arm K, and oscillating means therefor,substantially as set forth.

5. The combination, with the shaft having the cleaner-bar, bearings forsaid shaft, and the clutch having a movable section, of theshifter-piece having one arm arranged to operate the looseclutch-section, a toothed wheel having a number of projecting portionswhereby to engage the shifter-piece, such portions being movable,whereby they may be set into and out of position to engage theshifter-piece, the arm K, and oscillating means therefor, and the pawlengaging the toothed wheel, substantially as and for the purposesspecified.

6. The combination of the framing, the shaft having a cleaner, theclutch-section fixed on the shaft, the clutch-section loo se on theshaft and having an arm by which the said clutchsection may be rocked,oscillating means for said arm,a shifter-piece having afork engaging theloose clutch-section, and an arm by which the shifter-piece may berocked, a toothed wheel having projections arranged to engage the arm ofthe shifter-piece, and a pawl supported on the arm of the looseclutchsection and engaging the toothed wheel, substantially as setforth.

7. In a doffer-cleaner, the combination of the framing having a box orstrap, the circleblock turning therein and having a bearing off itscenter, the shaft j ournaled in said bearing and having a cleaner, suchshaft and cirole-block being provided with projections or portionsarranged to contact as the shaft is rocked, the clutch-section fixed onsaid shaft, the clutch-section loose on the shaft and pro vided with anarm, means for oscillating said arm, a shifter-piece en gaging the looseclutchsection, and means for operating said shifterpiece, substantiallyas set forth.

GEORGE BEBE.

Witnesses:

Aucusrm B01013, JoHN L. MoMAsrER.

